Shooting 300 Blackout in a 5.56 Barrel

[Acer-m14]

The bullet made it out ..

 

[Eddie Gunks]

I have a bcg i will poat photos of later. It was used to shoot .30 through a .22.

The customer wanted me to “fix” it (new parts) so he could use it. I said no. He did it himself. With a new bcg (and maybe stripped upper receiver, i cant remember)....it worked!